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02-19-2018, 07:02 PM
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#1
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Junior Member
Join Date: Feb 2018
Location: Eureka
Posts: 13
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Dc Touch lights interfere with power antenna
Hi all. We have a 2018 cougar tt, Anytime we are watching tv with the antenna and turn on one of the touch lights or plug something in to the DC power outlet, the picture freezes. Also, if we have one of the tap lights on and do a channel scan, we don’t pick up any channels. Turn off the taplights and unplug from the DC outlets and everything is fine. It’s done this since it was new. Any thoughts or others with same experience?
Thanks,
Don
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02-19-2018, 08:22 PM
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#2
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,341
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Almost sounds to me like the booster is bad.
Welcome to the forum
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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02-20-2018, 02:58 AM
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#3
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Senior Member
Join Date: Mar 2014
Location: Central Massachusetts
Posts: 616
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Hi Don: you are not alone. Our TV freezes up when we put the bathroom light on when on the antenna. I just figured it interferes with the signal. I'm not worried about.
__________________
JimQ
2012 Ford F 250 Super Duty Lariat 6.2 ; 3.73
2022 KZ C271BKHSE
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02-20-2018, 03:09 AM
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#4
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Senior Member
Join Date: Oct 2014
Location: Germantown, TN
Posts: 6,331
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Don, we also have the problem of watching TV and having the Maxxair power vent in the ceiling turned on. As soon as we turn it on the signal goes away. I know this doesn't help your situation, but misery loves company.....
__________________
Jim in Memphis, Wife of 51 years is Brenda
2019 F450 6.7 Powerstroke
2018 Mobile Suites 40RSSA
2021 40' Jayco Eagle
2001 Road king w/matching Harley sidecar
2021 Yamaha X2 Wolverine 1000
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02-20-2018, 07:57 AM
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#5
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Senior Member
Join Date: Nov 2017
Location: Picacho, Az
Posts: 6,809
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Do you all have same brand of tv? Are they 12 volt tv's? If so that may be the problem. Usually they are the cheapest on the market, not something you or In would ever buy.
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Full-timed 10+ years
Sold '13 Redwood FB
Traded '13 GMC Denali DRW D/A
Replacement undetermined
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02-20-2018, 08:01 AM
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#6
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,996
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Most of the LED lights used in RV's today have a voltage regulator circuit in the wiring. That voltage regulator can cause interference with the TV signal. Almost all of the lights do not require them to be installed with polarity. You might try reversing the 12 VDC wires on the light assemblies. Just remove the light from the wall, reverse the two wires and see if that helps. If not, then the choice is to either replace the light with another one (gamble on if it will be better) or replace the LED with an incandescent light (uses more electricity and produces more heat). Alternatively, just don't use that light fixture when watching TV.
You also may have a "whisker" (stray wire on the end connector) on one of your co-ax runs from the antenna to the TV, but that would probably also be causing other reception issues.
__________________
John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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02-20-2018, 08:57 AM
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#7
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Senior Member
Join Date: Mar 2014
Location: Central Massachusetts
Posts: 616
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John: Thank you for the suggestions. For us, its not a big deal to live with it. I'll leave the led bulb in for now. Danny: its a regular TV, not a 12v.
__________________
JimQ
2012 Ford F 250 Super Duty Lariat 6.2 ; 3.73
2022 KZ C271BKHSE
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02-20-2018, 10:04 AM
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#8
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Senior Member
Join Date: Aug 2012
Location: Waco, Tx
Posts: 5,457
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We have the same problem with our LED lights, but it only affects the weaker stations. In our case the problem LED lights are are the flat round 12 volt to 28 volt bulbs.
Javi
__________________
2015 Ford F350 DRW 6.7 Diesel XL
2020 Avalanche 313 RS
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02-20-2018, 10:25 AM
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#9
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Senior Member
Join Date: Mar 2014
Location: Mountain Home, Idaho
Posts: 3,013
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The LED fixtures generate RFI. There is not much you can do except don’t use while watching OTA tv. I’d not recommend replacing with standard lights. They draw more current and get hot.
Sent from my iPhone using Tapatalk
__________________
2007 GMC Classic club cab 4x4 Duramax LBZ
2014 Alpine 3010 RE. 34 foot fifth wheel
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02-20-2018, 10:28 AM
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#10
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Senior Member
Join Date: Mar 2014
Location: Mountain Home, Idaho
Posts: 3,013
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You can however drop the fixtures causing RFI and use ferrite beads to decouple the DC lines.....
http://betterautomotivelighting.com/...ed-headlights/
Sent from my iPhone using Tapatalk
__________________
2007 GMC Classic club cab 4x4 Duramax LBZ
2014 Alpine 3010 RE. 34 foot fifth wheel
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02-20-2018, 10:31 AM
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#11
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Senior Member
Join Date: Mar 2014
Location: Mountain Home, Idaho
Posts: 3,013
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And you could also install a couple of ferrite beads at the coax feed line to each tv to try and decouple the RFI from the TVss. For best results with this form a couple of loops in the feed coax to TV set and install ferrite bead.
Sent from my iPhone using Tapatalk
__________________
2007 GMC Classic club cab 4x4 Duramax LBZ
2014 Alpine 3010 RE. 34 foot fifth wheel
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02-20-2018, 11:38 AM
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#12
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Senior Member
Join Date: Jul 2017
Location: Poconos of PA
Posts: 288
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Quote:
Originally Posted by ChuckS
And you could also install a couple of ferrite beads at the coax feed line to each tv to try and decouple the RFI from the TVss. For best results with this form a couple of loops in the feed coax to TV set and install ferrite bead.
Sent from my iPhone using Tapatalk
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What Chuck said^^^^. We use what I call a ferrite "clamshell" that snaps around a coax or wire feeding a computer speaker to filter out RFI interference from radio transmissions. And as John said, you are likely getting RFI (radio frequency interference) from the LED lights. Get a "clamshell" thats a larger one, so you can wrap the TV coax around a couple times. And if you have enough coax length, use two clamshells, right next to each other as close to the TV coax hookup as you can get it.
What this is doing is "choking out" the RFI that is being picked up by the coax just before entering the TV.
Here's an Amazon link to the clamshell: https://www.amazon.com/dp/B01JMTCC5U...a-502908792392
Good luck. RFI can be a real PIA!
Mike
__________________
2018 Laredo 288RL Travel Trailer
2017 Silverado 2500 Crew Cab LTZ, Z-71, 6.6L Diesel
2017 Bullet Premier 19FBPR (traded)
2011 Silverado Crew Cab, 4wd Z-71, 5.3L (traded)
K9 Handler of my SAR partner and best friend Jeter!
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02-20-2018, 03:36 PM
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#13
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Senior Member
Join Date: Oct 2014
Location: Germantown, TN
Posts: 6,331
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"Do you all have same brand of tv? Are they 12 volt tv's? If so that may be the problem. Usually they are the cheapest on the market, not something you or I would ever buy."
No, ours is a Samsung, 50", MU6300, 4K. Not like it is the very top of the line, but a nice TV.
__________________
Jim in Memphis, Wife of 51 years is Brenda
2019 F450 6.7 Powerstroke
2018 Mobile Suites 40RSSA
2021 40' Jayco Eagle
2001 Road king w/matching Harley sidecar
2021 Yamaha X2 Wolverine 1000
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02-20-2018, 05:15 PM
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#14
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Senior Member
Join Date: Aug 2017
Location: Dandridge TN
Posts: 260
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Its the LED lights. Mine did the same thing. If you are still in warranty then have the dealer change them for ones with filters on them. That is what I had done and it fixed the problem. I had a couple other of the lights flicker and go dim on their own so they changed those too. Complain about it and have them fix it.
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